filled map

Hello all,

I am exclusivly working with a filled map of the province of Manitoba in Canada.

I have set of a sample set of data which looks like this:

You can see the attached picture to see what the map looks like

Now here is my issue:

For the sake of my data need I am trying to divide the entire province's map into 13 regions (based on a group of Postal Codes and/or street addresses - this requirment is still being fleshed out). How can I put these 13 regions on the map in the same manner as my current data set? I want my current data and the 13 regions to be on the same filled map visualization?

Please help....

Thanks